Fuel cap



FIG. 1 is a front perspective view from above of a fuel cap showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is an enlarged front perspective view showing the design with some of the environmental structure of the previous view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a right side elevation view thereof;

FIG. 8 is a rear elevation view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines depict environmental structure that forms no part of the claimed design. 

CLAIM We claim the ornamental design for a fuel cap, as shown and described. 